*{
    margin: 0;
    padding: 0;
}
.wrap{
    max-width: 640px;
    min-width: 320px;
    height: 100vh;
    margin: 0 auto;
}

@keyframes scroll {
    0% {
        left: -180px;
    }

    to {
        left: 10.8px;
    }
}

@keyframes scrollBefore {
    0% {
        top: 76.5px;
    }

    to {
        top: 11.7px;
    }
}

@keyframes scrollOut {
    0% {
        top: 11.7px;
        opacity: 1;
    }

    to {
        top: -18px;
        opacity: 0;
    }
}





.message-tip {
    position: fixed;
    top: 63px;
    color: #fff;
    width: 100vw;
    height: 99px;
    padding-left: 14.4px;
    line-height: 27px;
    box-sizing: border-box;
}

.message-tip-list {
    opacity: 0;
    position: absolute;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: distribute;
    justify-content: space-around;
    min-width: auto;
    height: 31.5px;
    padding: 9px;
    box-sizing: border-box;
    border-radius: 27px;
    background-color: rgba(0, 0, 0, .5);
}

.message-tip-list.active {
    opacity: 1;
    top: 54px;
    left: 10.8px;
    animation: scroll 1s;
}

.message-tip-list.active-before {
    opacity: 1;
    top: 11.7px;
    left: 10.8px;
    animation: scrollBefore 1s;
}

.message-tip-list.active-out {
    opacity: 0;
    top: -36px;
    left: 10.8px;
    animation: scrollOut .8s;
}

.message-tip-list .message-tip-pic {
    display: inline-block;

    /* line-height: 0.2rem; */
    border: 1px solid #fff;
    border-radius: 50%;
    margin-right: 11.25px;
    overflow: hidden;
    background-color: #333;
}

.message-tip-list .message-tip-pic img {
    display: block;
    width: 20px;
    height: 20px;
}

.message-tip-list .message-tip-text {
    -ms-flex: 1;
    flex: 1;
    font-size: 11.7px;
    line-height: 18px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
